Mechanical movement



y 2, 1931. c. H. SAMPSON 1,805,375

MECHANICAL MOVEMENT Filed Feb. 18, 1929 2 Sheets-Sheet l INVENTOR Zea 12 SGIIIfASO/J 7x3 ATTORNEY ay 12, 1931. c. H. SAMPSON 1,805,375

MECHANICAL MOVEMENT Filed Feb. 18, 1929 2 Sheets-Sheet 2 INVENTOR cfuu zes H Stern/260i.

whi Q Wu 1 ATTORNEY w t e H. SAEIPSGN, OF ROCHESTER, NEW YORK, ASSIGNOB TO SAMPSON PEREIA- GRAPH COMPANY INCL, GE ROCHESTER, NEVJ YORK, A CGBFOBATIQN OF Ifil'EVI' YORK MECHANICAL MOVEIMENT Application filed February 18, 1529.

The present invention relates to a mechanical movement and an object thereof is to provide a member shiftable in opposite directions through two shifting mechanisms with novel means for holding one of the 1nechanisms against operation when the shiftable member is under control of the other mechanism. Another object of the invention to employ two mechanisms for moving a shiftable member in opposite directions and to utilize said mechanisms in a novel manner for locking said member aginst movement when neither of the shifting mechanisms operating the member.

To these and other ends, the invention consists of certain parts and combinations of 1 ts, all of which will be hereinafter described: the novel features being pointed out in the appended claims.

In the drawings:

Fig. 1 is a plan View showing the member to be shifted in normal position;

Fig. 2 is a like View showing the member shifted by one of the shifting members;

Fig. 3 is an edge view;

Fig. 4 is a section on the line 4%, Fi 2;

Fig. 5 is a view in elevation of another emboiliment with the shiftable member in normal position; and

Fig. 6 is a similar view of the same embodiment showing the shiftable member sliftod by one of the shifting mechanisms.

It is desirable in machines to provioe a shiftable member which may be moved in opposite directions by two independently act ing shifting mechanisms in order to reduce the amount of movement of the shifting member when moved to either end of its line of movement. This invention provides not only for accomplishing this result, but ias a novel means which locks one shifting mecha nism against operation while the shiftable member is under the control of the other shifting mechanism. A. novel means is also employed for locking the shiftable member against movement when in neutral or normal position.

In the embodiment of the i vention shown in Figs. 1 to 4, 1 indicates the shiftable memher which, in this instance, is in the form of a Serial No. 340,845.

swinging gear segment mounted to turn about the axis 2 and gearing with a pinion 3 on shaft l wl ch is supported by a plate 5 also supporting the segment 1.

The two shifting mechanisms, in this instance, each comprise a bell crank lever 6 pivoted at '2' to the supporting plate or member 5 and having one arm 8 connected to any suitable means which will exert a push thereon. other arm 9 has a link 10 pivoted thereto at 11 and provided at its free end with an operating portion in the form of a lateral projection 12. A. spring 13 is preferably connected to each shifting mechanism in order to hold the operating portion in its normal or neutral position.

in order that the two shifting mechanisms may connect with the shiftable member 1, the latter has two oppositely facing abutments 1% formed by a side of each of two pockets or recesses 15, in the shiftable member and the springs 13 tend to hold the operating portions out of the pockets and out of engagement with the abutments. lVhereas, movement of either shifting mechanism carries its operating portion 12 into a pocket 15 to enthe abutment 14 thereof and cause the shifting of the shiftable member 1. In 0 'der to hold an operating portion 12 in a pocket 15 during such shifting, a fixed guide 16 may be employed, formed, in this instance, on plate 1.? rigidly secured to the plate 5 in spaced relation to the latter beneath the gear segment 1 but above the links 10. i

it is also desirable to prevent one shifting mechanism being operated while the other has shifted the shiftable member away from normal position and to this end. a guide 18 is provided on the shiftable member 1, in this instance, extending between the pockets 1st. and this guide will be engaged by the non shifted mechanism to hold the latter against movement whenever the shift-able member is shifted away from normal or neutral position. When the two shifting mechanisms are in neutral positions, the portions 12 lie in pockets 19 formed, in this instance, at opposite ends of the guide 16, and the guide 18 maintains one of these portions 12 in its pocket during the shifting of the shii'table member 1.

In order to hold the shift-able member against free movement in its neut all. or normal position, the shiftable member has two oppositely facing abutments 20 which are engaged by the portions 12 when the latter are both in normal positions in the pocl-iets 19.

In the embodiment shown in F' 6 and the shiftable member 1 is in the iorm of a slide guided on a shaft 2" and projections 2 extended from a support 5. On this support are pivoted at 7" two bell crank levers 6 having arms 8 connected to mechanisms I which will exert a pull on said arms. To the arms 9 of said levers are pivoted at 11 links which carry operating portions 12. The shiftable member has two opposed abntments 14 formed by a wall of each of two pockets l5 and a guide 18 on the shittable member cooperates with one of toese projections 12 when the other is shifting the slide 1 to hold such projection against movement in one 01". the pockets 19", whereas a fixed guide 16 cooperates with the shifted projection 12 to hold the latter in (fonnection with the shift able member 1.. The shittable member also rarries two opposed abutments 20 which cooperate with the projections 12 to hold the shit'table member in neutral or normal position.

In both en'ibodiments 01" the invention there is provided a shiftable member moved in opposite directions by two independently acting shifting mechanisms. The shiftable member is held in neutral or normal position by the shifting mechanism. A guide on the shiftable member holds the unshitted shifting mechanism against movement when the shiftable member is away from normal position, and a guide on a fixed part holds the shifting member operating the shiftablc member in connection with the la ter during the shifting.

Vhat I claim as my invention and desire to secure by Letters Patent is:

'1. The combination with a shittablc memher, and two shifting mechanisms normally out of driving connection with said member, a guide on the shiftablemember for holding one shitting mechanism out of driving connection with the shiftahle member while the latter is shifted away from normal position, and a fixed guide cooperz'iting with a soifting mechanism when the latter is shifting the shiftable member to hole said shifting mechanism in connection with the shi "table memher.

2. The combination with a shittable member having a guide and two pockets, of two oppositely acting shifting mechanisms eacn having a pivoted member provided with an operating portion normally lying out of such pockets but movable into one of the pockets to shift the shiftable member to carry the guide past the operating portion of the other shitting mechanism to prevent movement of the latter.

The con'ibination with a shiftable member having two abutn'ients, of a fixed guide, and two shitting mechanisms each having an operating portion normally lying out of cooperation with said abutments but movable into engagen'ient with one of the said abutments to shiitt the shiftablc member in one direction past the fixed guide to hold said operating portion in cooperation with its abutment.

4. The combination with a member to be shifted, of a iixed part, two opposed guides; one arranged on the fixed part and the other on the shittable member, each of said guides havin two pockets registering with the POCliQi'S oi" the other guide when the s li' able nien'iber is in neutral. position and two shifting mechanisms for the shitttble member each having an operating portion normally lying in a pocket oi the fixed guide and movable into the 1.'e,. istering pocketo't t to guide of the shittable member to cooperite with the fixed guide during the travel of the member and came the guide of the shiftable member to cooperate wi h the o ierating portion of the other shitting mechanism to hold the latter against movement.

CHARLES H. Sfhl dTPSON, 

